Agriculture Reference
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mineralizable C. The implications of losses of catabolic evenness for soil
function remain unresolved. Decreases in microbial catabolic evenness do
not cause declines consistently in decomposition functions in soils (Degens,
1998). However, declines in microbial catabolic evenness may cause loss of
soil resistance to stress or disturbance. At this stage, it is clear that changes
in catabolic patterns represent a useful indicator of changes in the health of
soils arising from land management.
References
Degens, B.P. (1998) Decreases in microbial functional diversity do not result in
corresponding changes in decomposition under different moisture conditions.
Soil Biology and Biochemistry 30, 1989-2000.
Degens, B.P. (1999) Catabolic response profiles differ between microorganisms
grown in soils. Soil Biology and Biochemistry 31, 475-477.
Degens, B.P. and Harris, J.A. (1997) Development of a physiological approach to
measuring the metabolic diversity of soil microbial communities. Soil Biology
and Biochemistry 29, 1309-1320.
Degens, B.P. and Vojvodic-Vukovic, M. (1999) A sampling strategy to assess the
effects of land use on microbial functional diversity in soils. Australian Journal of
Soil Research 37, 593-601.
Degens, B.P., Schipper, L.A., Claydon, J.J., Russell, J.M. and Yeates, G.W.
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Degens, B.P., Schipper, L.A., Sparling, G.P. and Vojvodic-Vukovic, M. (2000b)
Decreases in organic C reserves in soils can reduce microbial catabolic
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Giller, K.E., Beare, M.H., Lavelle, P., Izac, A.-M.N. and Swift, M.J. (1997)
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Sparling, G.P., Schipper, L.A., Hewitt, A.E. and Degens, B.P. (2000) Resistance
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Trevors, J.T. (1998) Bacterial biodiversity in soil with an emphasis on chemically-
contaminated soils. Water, Air and Soil Pollution 101, 45-67.
Wardle, D.A., Giller, K.E. and Barker, G.M. (1999) The regulation and functional
significance of soil biodiversity in agro-ecosystems. In: Wood, D. and Lenne,
J.M. (eds) Agrobiodiversity: Characterization, Utilization and Management . CAB
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